The following is a story about identical twin sisters introduced in 'Linda and Lisa.' It will be more enjoyable if you read that story first.
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Linda and Lisa slept until noon on Saturday, bodies spooned tight together in Lisa's bed, their blonde hair mingled on the pillow. Their Aunt Nicole had looked in earlier and decided not to disturb them. Under normal circumstances she might have been troubled to see the eighteen-year-old sisters sleeping together—after all, each girl had her own bed—but since the death of their parents she knew that the twins had drawn closer together than ever. She thought it was sad and sweet that the girls found comfort in the warmth of each other's body. Her eyes had filled with tears for the thousandth time as she peeked at her sleeping nieces, and Nicole thought of her own dear sister Janet, the twins' mother.
The girls' father, Ian, and Janet had been killed a year earlier when a negligent truck driver flattened their small car against a retaining wall. The parents died instantly, but the pain had only begun for their young daughters. Nicole had been happy to take in the two orphans even though it would be tough financially. Her husband, Tim, made good money when he was working, but was currently laid off from his construction job. He was out of work every year for at least a few months. The most aggravating thing about these layoffs, from Nicole's perspective, was that Tim didn't mind them. Though he made a show of fretting about the mortgage payments, he seemed content to let Nicole worry about the household expenses while he spent his days puttering around the house. Nicole worked as a registered nurse at the local hospital and her salary, combined with Tim's unemployment checks, barely allowed them to scrape by.
Nicole thought at first that Tim might resent having two extra mouths to feed, but that wasn't the case at all. He had been a caring, affectionate uncle even before the accident, and the twins had each cried on his shoulder many times since. Nicole's nursing position required her to be at the hospital for three twelve-hour shifts per week, from eight in the evening until eight in the morning. When she wasn't working she slept, often for ten or more hours straight, and she was glad that Tim was there for her young charges. She thought it was better that the girls weren't left by themselves. Even though they were legally adults, Nicole still thought of her nieces as vulnerable children.
Of course, Nicole might have felt differently about the girls sleeping in the same bed if she had known that under the covers Lisa and Linda were completely naked. She couldn't have guessed that the girls were sleeping late because they had spent half the night making passionate love to each other. How could she have known? The twins themselves hadn't seen it coming. Yes, they had often practiced kissing each other, but that was as far as it went—until last night. Now everything had changed.
Lisa woke when the weight of her sister's head resting on her arm started to grow uncomfortable. Her first waking breath was full of warmth and sunlight and the smell and feel of Linda's hair brushing her nose. She found that her small breasts were pressed against Linda's back and her other arm was around her sister's waist. In fact, their bodies were fitted against each other from head to toe. Even their fingers were laced together. Memories of the night came back one by one, and Lisa smiled. Soon she would have to move, but for the moment she just lay and enjoyed being so close to person dearest to her in the world, and relived the experiences of a few hours earlier.
So many firsts for her last night! Her first orgasm that was not self-administered. The first time her pink puffy nipples had been licked and sucked, and the first time her pussy had been eaten. Of course she had reciprocated willingly, eagerly. And all these experiences were especially sweet because they were with her with her beloved twin sister. After they had satisfied one another, bright morning sun streaming in the bedroom window, Lisa had asked her sister more questions about Jason. "So didn't he want you to do anything for him after...you know..."
"After he'd licked my pussy?"
"Such language!" Lisa giggled.
She had listened as Linda described taking Jason's cock from his jeans and stroking it according to his directions.
"What did it feel like?" Lisa had never seen or touched an erect penis.
Linda told her how alive it had felt in her hand, smooth and soft, yet stiff and hard, and how it had pulsed and grown even harder as she stroked it.
"Then what?"
"Then he asked me to lick it."
"Oh my god! Did you do it?"
"Yes. Then he said, 'Keep stroking it like that, and put the head in your mouth and suck on it like a Popsicle.'"
"You didn't!"
"Yes, I did. And after a minute he said he was gonna cum, so I took it out of my mouth and kept stroking, and he shot all over the place."
Linda had gone on to tell her sister about the feel of Jason's hot semen on her hand and how he'd given her his bandana to clean it up. As these memories flooded through her, Lisa felt a tingle between her thighs where she was pressed against Linda's smooth round ass. She glanced towards the door and saw that it was open. Aunt Nicole must have looked in on them. Their aunt knew they sometimes slept together, but if she had seen them naked in bed...well, that would be harder to explain.
Linda awoke when Lisa freed her arm. She turned toward her sister, eyes still half closed. "What are you smiling about?" she mumbled.
Lisa's smile grew wider. "Don't you remember?"
"Oh god," said Linda. "I can't believe we did that."
"I know! Wasn't it awesome?"
"Yeah...but don't you think it was, like, wrong?"
"Maybe—but who cares? When can we do it again?" She pulled Linda's face close and kissed her.
"Cut it out, Lis! What if Aunt Nicole or Uncle Tim walked in? Look, hand me my t-shirt, would you? I'm getting up."
Lisa felt like she'd been punched in the stomach. "Linda, what's the matter? Didn't I make you feel good?"
"Yes," she said, pulling the shirt over her head. "It felt good. But thinking about it now makes me feel dirty."
"I was hoping we could do it again tonight..."
"I don't know Lis. You're my sister and I love you and all, but...you're my sister! It's...incest," she said, whispering the last word. "Besides, I have another date with Jason tonight."
"Oh. Jason. Of course. Well, sorry I asked." And with that Lisa flung herself out of bed, grabbed a t-shirt and stormed out naked towards the bathroom.
Barreling out of the room she almost ran straight into her Uncle Tim. She barely glanced at him as she stomped into the bathroom and slammed the door. He opened his mouth as if to speak, but no words came out. He stood as if paralyzed for a long moment, then knocked on the bathroom door.
"Lis," he began uncertainly. "I'm sorry. I didn't know..."